Engineering:GSAT-31

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Short description: Indian telecommunications satellite
GSAT-31
GSAT-31 render 02.png
GSAT-31 in deployed configuration
Mission typeCommunication
OperatorISRO
Mission durationPlanned: 15 years
Elapsed: 5 years, 8 months, 26 days
Spacecraft properties
BusI-2K
ManufacturerISRO Satellite Centre
Space Applications Centre
Launch mass2,536 kg (5,591 lb)
Powersolar arrays, batteries
Start of mission
Launch date6 February 2019
RocketAriance 5 VCA
Launch siteKourou ELA-3
ContractorArianespace
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Slot82.95°E[1]
48°E (Feb to Sept 2019)
Transponders
BandKu
← GSAT-7A
GSAT-30 →
 

GSAT-31 is a high-throughput telecommunication satellite developed by the Indian Space Research Organisation (ISRO).[2]

Mission

The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR.[2] The satellite provides advanced telecommunication to the Indian subcontinent. It is used for VSAT networks, television uplinks, digital signage new gathering, DTH services and other communication systems. This is the 40th communication satellite launched by ISRO and the 22nd launch of ISRO satellite by Arianespace.[3][4][5]

Launch

The satellite was launched through the 103rd flight of Ariane 5 ECA on 5 February 2019 at 21:01 UTC, the vehicle also deployed Hellas-Sat-4/SaudiGeoSat-1.[6]

The launch of the GSAT-30 and GSAT-31 by Arianespace is expected to cost Rs 950 crore.[7]

Relocation

In July 2019, GSAT-31 maneuvered to lower its altitude and drifted eastward to reach new slot at 82.95°E on 31 August 2019.

References

  1. ↑ "Historical satellite position data for GSAT-31". https://www.satellite-calculations.com/Satellite/getpositionhistory.php?44035. 
  2. ↑ 2.0 2.1 "GSAT 31 Brochure". https://www.isro.gov.in/gsat-31/gsat-31-brochure. 
  3. ↑ "India's 40th Communication Satellite, GSAT-31, Launched". https://www.ndtv.com/india-news/indias-40th-communication-satellite-gsat-31-launched-1988977. 
  4. ↑ "For its first mission of 2019, Arianespace to launch two telecommunications satellites with Ariane 5" (in en-US). http://www.arianespace.com/press-release/for-its-first-mission-of-2019-arianespace-to-launch-two-telecommunications-satellites-with-ariane-5/. 
  5. ↑ "Arianespace VA247 launchkit". http://www.arianespace.com/wp-content/uploads/2019/01/VA247-launchkit-EN.pdf. 
  6. ↑ Bergin, Chris (5 February 2019). "Ariane 5 launches Hellas-Sat-4/SaudiGeoSat-1 and GSAT 31". NASASpaceFlight. https://www.nasaspaceflight.com/2019/02/ariane-5-hellas-sat-4-saudigeosat-1-gsat-31-launch/. 
  7. ↑ "ISRO faces costly proposition over recall of GSAT-11". https://www.newindianexpress.com/states/karnataka/2018/aug/01/isro-faces-costly-proposition-over-recall-of-gsat-11-1851412.html. 




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